{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

Ɛhia

1

What is the main definition of excretion?

A) The removal of undigested food from the body

B) The removal of waste products of metabolism and substances in excess of requirements

C) The breakdown of large food molecules into smaller ones

D) The release of energy from food in cells

Ɛhia

1

Which organ is responsible for deamination of excess amino acids

A) Kidney

B) Lungs

C) Liver

D) Skin

Ɛhia

1

Which blood vessel brings oxygenated blood and waste products to the kidney?

A) Renal vein

B) Renal artery

C) Hepatic portal vein

D) Vena cava

Ɛhia

1

What is the functional unit of the kidney where filtration takes place?

A) Alveolus

B) Ureter

C) Nephron

D) Glomerulus

Ɛhia

1

Which hormone controls the water content of the blood by acting on the collecting ducts?

A) Insulin

B) Adrenaline

C) ADH (Antidiuretic hormone)

D) Glucagon

Ɛhia

1

What happens to the skin blood vessels when your body temperature is too high?

A) Vasoconstriction (vessels get smaller)

B) Vasodilation (vessels widen)

C) Vessels disappear

D) Vessels block completely

Ɛhia

1

What is homeostasis?

A) The maintenance of a constant internal environment

B) The increase in cell size during growth

C) The movement of substances against a concentration gradient

D) The breakdown of toxins in the body

Ɛhia

1

Where is urea formed in the human body, and from what substance is it derived?

A) Formed in the kidneys from excess glucose

B) Formed in the liver from excess amino acids

C) Formed in the kidneys from excess fatty acids

D) Formed in the liver from excess lactic acid

Ɛhia

1

What is the name of the process in the liver that breaks down excess amino acids to form ammonia?

A) Assimilation

B) Deamination

C) Respiration

D) Filtration

Ɛhia

1

In which blood vessel of a healthy human is the lowest concentration of urea found?

A) Hepatic artery

B) Hepatic vein

C) Renal artery

D) Renal vein

Ɛhia

1

What is the main purpose of a negative feedback loop in the human body?

A) To increase the speed of a changing signal continuously

B) To maintain a stable internal environment (homeostasis)

C) To stop all metabolic processes permanently

D) To amplify an original change until a goal is reached

Ɛhia

1

Which of the following processes is a classic example of a negative feedback mechanism?

A) Blood clotting after a skin cut

B) Contractions during childbirth

C) Regulation of blood glucose levels

D) The ripening of fruit by gas release

Ɛhia

1

If blood glucose concentration rises too high after a meal, which hormone is released and what is its effect?

A) Glucagon is released, causing blood sugar to rise further

B) Insulin is released, causing blood glucose levels to fall

C) Insulin is released, causing blood glucose levels to rise

D) Glucagon is released, causing blood glucose levels to fall

Ɛhia

1

What is the correct sequence of components in a negative feedback loop?

A) Effector → Sensor → Stimulus → Response

B) Stimulus → Effector → Receptor → Control center

C) Stimulus → Receptor → Control center → Effector → Response

D) Response → Control center → Receptor → Stimulus

Ɛhia

1

Which part of the brain controls body temperature?

A) Cerebellum

B) Hypothalamus

C) Medulla

D) Pituitary gland

Ɛhia

1

What happens when body temperature rises above normal?

A) Blood vessels near the skin get smaller

B) Hairs on the skin stand up

C) Sweat glands release more sweat

D) Shivering begins in the muscles

Ɛhia

1

How does sweating help cool the body down?

A) Sweat absorbs heat from the skin and evaporates

B) Sweat warms the air around the skin

C) Sweat stops blood from flowing to the skin

D) Sweat increases the metabolic rate

Ɛhia

1

What is vasoconstriction?

A) Blood vessels get wider to let more blood flow near the skin

B) Blood vessels get smaller to keep blood away from the skin surface

C) Sweat glands make more sweat

D) Muscles contract quickly to make heat

Ɛhia

1

Why is temperature control an example of negative feedback?

A) It makes any change get much bigger and faster

B) It stops the body from ever changing temperature at all

C) It brings a changed value back toward the set normal point

D) It only works when the environment is cold

Ɛhia

1

During deamination of an amino acid, what are the two main parts split by the liver enzymes?

A) A nitrogen-containing part that forms urea and a carbon-containing part that can form glycogen

B) Glucose and water

C) Carbon dioxide and lactic acid

D) Fatty acids and glycerol

Ɛhia

1

Which statement correctly describes the cause of Type 1 diabetes?

A The pancreas produces too much insulin.

B The pancreas stops producing enough insulin.

C The body cells become resistant to insulin.

D The liver converts too much glycogen into glucose.

Ɛhia

1

This refers to the maintenance of a constant internal environment.

Ɛhia

1

This is a hormone excreted by the pancreas, which increases blood glucose concentration.

Ɛhia

1

This refers to the hormone secreted by the pancreas to reduce glucose concentration in the blood.

Ɛhia

1

Refers to the normal value or range of values for a particular parameter- for example the normal body temperature.

Ɛhia

1

This refers to structure found in the skin of mammals, which secretes a watery fluid onto the skin surface to reduce body temperature.

Ɛhia

1

This refers to the naarowing of blood vessels, caused by the contraction of muscle in their walls.

Ɛhia

1

This refers to the removal of waste products of metabolism and substances in excess of requirements.

Ɛhia

1

This refers to the removal of the nitrogen containing part of amino acids to form urea.

Ɛhia

1

This refers to little network of blood capillaries, where the blood is filtered in the kidney.

Ɛhia

3

Explain what deamination is, and where it happens.

Ɛhia

5

Discuss how does pancreas and liver regulate excess blood glucose and low blood glucose to get to normal.

Ɛhia

1

Describe how does our body reacts when temperature falls. Use the following words; erector muscle, contract, hairs, constrict, cappillaries, arterioles, metabolism)

Ɛhia

5

Describe how does our body reacts when temperature rise. Use the following words; erector muscle, vasodilation, hairs, cappillaries, arterioles, metabolism, sweat)

Ɛhia

1

Excretion and homeostasis 2

Excretion and homeostasis 2

What is the main definition of excretion?

Which organ is responsible for deamination of excess amino acids

Which blood vessel brings oxygenated blood and waste products to the kidney?

What is the functional unit of the kidney where filtration takes place?

Which hormone controls the water content of the blood by acting on the collecting ducts?

What happens to the skin blood vessels when your body temperature is too high?

What is homeostasis?

Where is urea formed in the human body, and from what substance is it derived?

What is the name of the process in the liver that breaks down excess amino acids to form ammonia?

In which blood vessel of a healthy human is the lowest concentration of urea found?

What is the main purpose of a negative feedback loop in the human body?

Which of the following processes is a classic example of a negative feedback mechanism?

If blood glucose concentration rises too high after a meal, which hormone is released and what is its effect?

What is the correct sequence of components in a negative feedback loop?

Which part of the brain controls body temperature?

What happens when body temperature rises above normal?

How does sweating help cool the body down?

What is vasoconstriction?

Why is temperature control an example of negative feedback?

During deamination of an amino acid, what are the two main parts split by the liver enzymes?

Which statement correctly describes the cause of Type 1 diabetes?

This refers to the maintenance of a constant internal environment.

This is a hormone excreted by the pancreas, which increases blood glucose concentration.

This refers to the hormone secreted by the pancreas to reduce glucose concentration in the blood.

Refers to the normal value or range of values for a particular parameter- for example the normal body temperature.

This refers to structure found in the skin of mammals, which secretes a watery fluid onto the skin surface to reduce body temperature.

This refers to the naarowing of blood vessels, caused by the contraction of muscle in their walls.

This refers to the removal of waste products of metabolism and substances in excess of requirements.

This refers to the removal of the nitrogen containing part of amino acids to form urea.

This refers to little network of blood capillaries, where the blood is filtered in the kidney.

Explain what deamination is, and where it happens.

Discuss how does pancreas and liver regulate excess blood glucose and low blood glucose to get to normal.

Describe how does our body reacts when temperature falls. Use the following words; erector muscle, contract, hairs, constrict, cappillaries, arterioles, metabolism)

Describe how does our body reacts when temperature rise. Use the following words; erector muscle, vasodilation, hairs, cappillaries, arterioles, metabolism, sweat)

Explain why defecation is not considered excretion, while exhaling carbon dioxide is classified as a form of excretion.

What is the main definition of excretion?

Which organ is responsible for deamination of excess amino acids

Which blood vessel brings oxygenated blood and waste products to the kidney?

What is the functional unit of the kidney where filtration takes place?

Which hormone controls the water content of the blood by acting on the collecting ducts?

What happens to the skin blood vessels when your body temperature is too high?

What is homeostasis?

Where is urea formed in the human body, and from what substance is it derived?

What is the name of the process in the liver that breaks down excess amino acids to form ammonia?

In which blood vessel of a healthy human is the lowest concentration of urea found?

What is the main purpose of a negative feedback loop in the human body?

Which of the following processes is a classic example of a negative feedback mechanism?

If blood glucose concentration rises too high after a meal, which hormone is released and what is its effect?

What is the correct sequence of components in a negative feedback loop?

Which part of the brain controls body temperature?

What happens when body temperature rises above normal?

How does sweating help cool the body down?

What is vasoconstriction?

Why is temperature control an example of negative feedback?

During deamination of an amino acid, what are the two main parts split by the liver enzymes?

Which statement correctly describes the cause of Type 1 diabetes?

This refers to the maintenance of a constant internal environment.

This is a hormone excreted by the pancreas, which increases blood glucose concentration.

This refers to the hormone secreted by the pancreas to reduce glucose concentration in the blood.

Refers to the normal value or range of values for a particular parameter- for example the normal body temperature.

This refers to structure found in the skin of mammals, which secretes a watery fluid onto the skin surface to reduce body temperature.

This refers to the naarowing of blood vessels, caused by the contraction of muscle in their walls.

This refers to the removal of waste products of metabolism and substances in excess of requirements.

This refers to the removal of the nitrogen containing part of amino acids to form urea.

This refers to little network of blood capillaries, where the blood is filtered in the kidney.

Explain what deamination is, and where it happens.

Discuss how does pancreas and liver regulate excess blood glucose and low blood glucose to get to normal.

Describe how does our body reacts when temperature falls. Use the following words; erector muscle, contract, hairs, constrict, cappillaries, arterioles, metabolism)

Describe how does our body reacts when temperature rise. Use the following words; erector muscle, vasodilation, hairs, cappillaries, arterioles, metabolism, sweat)

Explain why defecation is not considered excretion, while exhaling carbon dioxide is classified as a form of excretion.